Process of and apparatus for coating fabrics



(No Model.) ASheets-Sheet 1.

E. G. SPARKS. PROCESS OF AND APPARATUS FOR COATING FABRICS.

No. 349,463. Patented Sept. 21; 1886.

WITNESSES: W

' ATTOB.

(No ModL) 4 Sheets8heet 2.

BIG. SPARKS. f 13300358 UP AND APPARATUS. FUR COATING FABRICS.

Patented SeptDZI, 1886.'-

INVENTOR: My Q WITNESSES: Wdfli, ..@44, E

ATTORNEYS.

m Klodel.) 4 ShetQ-Sheet a;

E. e.- SPARKS. I

PROCESS OF AND APPARATUS FOR OOATING PABRIGS.

INVhNTOR 5 Mm I ATTORNEYS.

(Ho Modei.) 1 4 Sheets-Sheet 4.

E. G. SPARKS.

PROGESS. or AND APPARATUS P01} comma PABRIGS.

No. 349,463. I I Patented Sept. 21, 1886.

figsnm mvsntom .yzzm M44 JW BY 4am ATTORNEYS.

EDWARD G. srAnKsor BROOKLYN,

PROCESS OF AND APPAR SPECIFICATION roi'm ing part of Letters Patent H 0. 349,463, dated Septembe To aZFwhomit may concern:

Be it known that], EDWARD G. SPARKS, of Brooklyn, in the county of Kings and State of New York, have invented a new and useful Improvement in Process of 'and Apparatus for Ooatin'g Fabrics, of which the following is a specification, reference v-being'had to the annexed drawings, forming a part thereof, in which to Figure 1 is a side elevation of one form of my improved apparatus for coating fabrics from a continuous roll; Fig. 215; a plauview.

Fig. 3 represents a modified .form. Fig. 4 is a side elevation of my improved apparatus adapted to coat sheets. Fig. 5 is a face view of two cord-carrying rollers.

Similar letters of reference indicate corresponding parts in the diilerent figures of the drawings.

The object of my inve improved process for coa other fabrics with paraifine,wax, or other coating material, or for saturating them with curative agents, and to provide suitable means for practically carrying out the process.

nt ion is to provide an ting paper,cloth,and'

My improved process of coating paper with wax, parafiine, or other coating material consists in projecting upon one orboth sides of the paper a fine spray of the coating material and maintaining the apparatus and the coating material" in a heated condition to insure the uniform spraying of the coating material over the entire surface of the fabrics to be coated. I

It also consists in apparatus for spraying the coating material upon'the fabric, as hereinafter more fully described.

In carrying out my invention I provide two sets of atomizers oneset for each side of the fabric-and in cases where the fabric is to be coated with material rendered liquid by fusion 1 inclose the coating apparatus in a heated chamber to maintain the coating material in a heated condition. A pipe, A, connected with an airreservoir, B, communicates with the atomizer-tubes (J G, which are arranged parallel with each other and extend horizontally over the vats D D, in which the coating material is contained. The tubes 0 0' are provided with series of jets a, whichare arranged horizontally, pointing toward each 'be forced through the tom new YO K,

ATUS FOR COATING FABRICS.

sealant. name. (No noun.)

other, tube 0 heing pre in position with the series, of jets connected with the ferably arranged'to alternate the. jets projecting from the tube 0; but I do not confine myself to this arrangement. Each jet a is provided with a tube, 1), one end of which adjoins 'the extremity of the jet; The other end dips intovthe liquid coating material contained by the vats D D. An air-pump, 1* of ordinary construction, is' connected with the reservoir B by the pipe F, the air-pump being arranged so that when its piston c is raised air will enter through the valve d, and when its piston is lowered the valve (1 will be closed, and air will discharge-valve 0 into the reservoir B, where it will be retained by the valve c. The reservoir B is provided with a safety-valve, f, of ordinary construction, to prevent over-pressure in the reservoir. The pipe'A is provided with stop-cocks g g, for regulating the flow of air under pressure to the jets a. When the apparatus is to be used for applying wax, para'ffine, or similar coating material to paper or other fabrics,.the atomizing, air-condensing, and spraying apparatus is inclosed in achalnbe'r, G, provided in the botthereof with a series of steampipes, H, by which the desired temperature may be maintained. The fabric 1', tube coated, is taken from the roll I over the guide-roller J, through aslit, 1:, in the bottom of the-chamber G, thence upward through the chamber and between the series of jets a and vats D D, through a slit, h, in the top of the chamber G, over the guide-roller. J, thence to -"the roller K, upon which the finished fabric is received. Rotary motion is imparted to the roller K,'so that the fabric 1 is drawn from the roll I through the chamber at a suitable speed, and

the air-pump E is operated in any convenient way, drawing the heated airfrom the chamber G and compressing it in the reservoir 13. The escape of the air through each jet a forms a vacuum in the month of the tube b, thus cans-- ing the liquid material to be drawn upward from the tube, and the forcible discharge of airfrom the jet atomizes the coating material in the usual well-known way, and projects it upon the fabric being drawn through the chamber. When it-is desired to coat the fabl ric on one side only, the stop-cock y will be closed, and only the atomizers connected with the pipe will be used. The distance between the top of the chamber G and the guideroller J will be suificient to permit of the cooling of the coating material before it reaches the guide-roller; and where waterproofing varnish, remedial agents, or other coating material is applied which require drying before rolling the fabric upon the roller K the distance between the atomizers and the guideroller J will be varied according to requirements. In some instances, instead of taking the coating material from the top of the vat .by tubes 1), I insert the tubes b in the bottom of thevats,and place the pipes G 0 below the vats, as shown in Fig. 3, and allow the coating material to flow into the jets by gravity. In

this case, to catch any coating material that may drip from the tubes b, I provide troughs l, which are placed undertheseries of jets.

To coat single sheets of paper or other material by an arrangement of spray-jets, I provide a chamber, G, having slits h hin opposite sid es thereof, for the admission and discharge of the paper sheets, and I arrange two sets of endless cords, L L, running over grooved rollers, for conveying the sheets through the,

chamber G. The endless cords L run over the grooved rollers ij k, through and around the chamber G, and the endless cords L- run over the grooved rollers i j k, through and around the chamber G. The endless cords L run horizontally between the rollers 'ik through the slits h h, and the-cords L run horizontally from the roller 13 to the roller it through the slits h h, so that the two series of cords in their passage through the chamber G are parallel. The lower series, L, project beyond the'upper series toward the sheet-support M, so that the sheets N, fed to the apparatus from the support, will be received on the lower series of cords and carried forward under the upper series, after which they will be carried by and between the two series, through the chamber, and between the jets a, arranged above and below the path of the sheets. The sheets, after having received their coating in the chamber, are carried forward between the series of cords L L and allowed to cool, and are then delivered to the series-of endless cords O O, which carry the sheets forward to a receptacle, P, arranged to receive them.

To permit of arranging the jet-tubes a vertically, in the present case the tubes 1) for conveying the coating material to the jet-tubes heating and air-compressing appliances in this case will be the same as those above described.

'Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is'

1. The method of coating paper with wax, consisting, essentially, in spraying the wax in a soft, liquid, or melted state onto the paper, substantially as set forth.

2. Themethod of applying coating material to fabrics, which consists in projecting the coating material upon the fabric in the form of spray, and carrying the fabric forward 'th rough the spraying'apparatus to continuously present a new surface to the action of the spray, substantially as herein shown and described.

3. The method of coating fabrics, which consists in spraying the coating material upon the fabric while the coating material and the fabric are in a heated condition, substantially as herein shown and described.

4. In apparatus for coating fabrics, one or more series of spray-tubes adapted to project the coating material onthe fabric to be coated, and means for continuously feeding the fabric forward, substantially as herei 11 shown and de scribed.

5. In apparatus for coating fabrics, the combination, with one or more series of jets for spraying the coating material upon the fabric, and mechanism for carrying the fabric forward, of means for maintaining the fabric and the coating material ina heated condition, substantially as herein shown and described.

6. In apparatus forcoating fabrics, the combination, with the series of spray-tubes, an aircompressor,'and an air-reservoir, and vats for containing the coating material, of the chamber G, inclosing the ai r-compressi ng and spraying apparatus, and means for maintaining the chamber in a heated condition, substantially as herein shown and described.

.7. The combination, in apparatus for coating fabrics, of the jets a, tubes b, 'air-reservoir B, pipes communicating between the jets u and the air-reservoir, the air-pump E, for conr pressing air in the reservoir, vats D D, for containing the coating material, the chamber G, having slits h h, for the passage of the fabric, and steam-pipes H, for maintaining the chamber in a heated condition, substantially as herein shown and described.

EDWARD G. SPARKS. Witnesses:

GEo. M. HOPKINS, C. SE GWI'OK.

ICO 

